Split into two jobs

Author: andyw8

.github/workflows/ci.yml

@@ -54,3 +54,22 @@ jobs:
 
       - name: Check if documentation is up to date
         run: bundle exec rake ruby_lsp:check_docs
+  lint:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+
+      - name: Set up Ruby
+        uses: ruby/setup-ruby@v1
+        with:
+          bundler: latest
+          bundler-cache: true
+
+      - name: Typecheck
+        run: bundle exec srb tc
+
+      - name: Lint Ruby files
+        run: bin/rubocop
+
+      - name: Check if documentation is up to date
+        run: bundle exec rake ruby_lsp:check_docs